first edition in latinof the author's 1557 Astronomique Discours, his major work, 'an elaborately illustrated book with movable diagrams which describes the basic elements of astronomy and planetary motion based on the monumental Astronomicum Caesareum of Peter Apian' (ODNB). Bassantin was a Scottish astronomer (d. 1568) who taught for many years in France. Harvard/Mortimer-French 47; Warner, The Sky Explored, page 17 (both citing the original edition); Cartier 704; GLN 4032; Shaaber B315 (this edition).